Strategic Intelligence

Tools · Compound Forecaster
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Compound Forecaster

The most powerful force in the universe (Munger). Project compounding over decades. Compare your strategy vs index alternative. Cost drag — commissions, taxes, slippage — is the silent killer.

Inputs

Starting capital$
Monthly contribution$
Your strategy return% / yr
Be honest. After taxes + costs.
Cost drag% / yr
Commissions + taxes + slippage. Active traders rarely under 2%.
Yearsyr
Comparison: index return% / yr
S&P 500 historical: ~10%. Modest assumption: 8%.
After 25 years
Your strategy
$2,160,406
8.00% / yr after costs
Index comparison
$2,160,406
8.0% / yr
Strategy underperforms by $0 (0.0%). Significant cost — re-examine.

Year-by-year

Year 0Year 25
Your strategyIndex comparison

The Math

Total contributed$650,000
Strategy net return$1,510,406
Index net return$1,510,406
Difference+$0
Cost drag total damage-$0
What costs would have compounded into
Honest Read
Significant gap. Either return assumption is too low, cost drag is too high, or the strategy isn't beating index. Most active traders fall here. Switching to low-cost index would add $0 over your time horizon.
Connected dossiers:Buffett · Munger